Table 3.

Model 1 Contractualist Economy, 1946–2010 . | Model 2 Exports of Goods and Services, 1960–2012 . | ||||
---|---|---|---|---|---|

Agreement with the United States | β | T | Agreement with the United States | β | T |

Contractualist^{∗}Capability^{2} | 0.53 | 1.29 | Exporter^{∗}Capability^{2} | 0.42 | 0.77 |

Contractualist^{3} | 0.96 | 7.15^{∗∗∗} | Exporter^{3} | 0.46 | 3.92^{∗∗∗} |

Capability^{4} | −0.08 | −3.86^{∗∗∗} | Capability^{4} | −0.12 | −1.83^{∗} |

Intercept | 0.13 | 2.80^{∗∗∗} | Intercept | −0.02 | −0.47 |

R-square: 0.08 | R-square: 0.08 | ||||

N = 7,017 | N = 5,243 |

Model 1 Contractualist Economy, 1946–2010 . | Model 2 Exports of Goods and Services, 1960–2012 . | ||||
---|---|---|---|---|---|

Agreement with the United States | β | T | Agreement with the United States | β | T |

Contractualist^{∗}Capability^{2} | 0.53 | 1.29 | Exporter^{∗}Capability^{2} | 0.42 | 0.77 |

Contractualist^{3} | 0.96 | 7.15^{∗∗∗} | Exporter^{3} | 0.46 | 3.92^{∗∗∗} |

Capability^{4} | −0.08 | −3.86^{∗∗∗} | Capability^{4} | −0.12 | −1.83^{∗} |

Intercept | 0.13 | 2.80^{∗∗∗} | Intercept | −0.02 | −0.47 |

R-square: 0.08 | R-square: 0.08 | ||||

N = 7,017 | N = 5,243 |

1

See notes 1 and 2 in table 2.

2

Interaction term. *T*-value represents the significance of capability when the other constituent term (contractualist in model 1 or exporter in model 2) equals 1, calculated as (*b*1 + *b*3 (*e*)) / SQRT (variance(*b* 1) + e2∗variance(*b*3) + 2∗*e*∗covariance(*b*1*b*3)), where *b*1 and *b*2 are the constituent terms, *b*3 is the interactive term, and *e* represents a particular value of *b*2. See Robert J. Friedrich, “In Defense of Multiplicative Terms in Multiple Regression Equations,” *American Journal of Political Science*, Vol. 26 (1982), pp. 797–833, doi.org/10.2307/2110973. Capability is a state's percentage share of global capability as identified by the Correlates of War National Material Capabilities index, standardized by subtracting from its median value and dividing the resultant by the standard deviation of the uncentered variable. See J. David Singer, Stuart A. Bremer, and John Stuckey, “Capability Distribution, Uncertainty, and Major Power War, 1820–1965,” in Bruce Russett, ed., *Peace, War, and Numbers* (Beverly Hills, Calif.: Sage, 1972).

3

Standard error is conditional with capability having a value of 0, its median.

4

Standard error is conditional with the binary measures contractualist (model 1) or exporter (model 2) having values of 0, meaning having a status (model 1) or an insular (model 2) economy.

∗∗∗

p < 0.01, two-tailed tests.

∗∗

p < 0.05, two-tailed tests.

∗

p < 0.10, two-tailed tests.

This site uses cookies. By continuing to use our website, you are agreeing to our privacy policy.